JPS63110071U

JPS63110071U -

Info

Publication number: JPS63110071U
Application number: JP185287U
Authority: JP
Priority date: 1987-01-09
Filing date: 1987-01-09
Publication date: 1988-07-15

Description

[Brief explanation of the drawing]

第１図乃至第１８図はこの考案の一実施例を示
すもので、第１図は基本例を示す平面図、第２図
はその一部の底面図、第３図は第１図のＡ―Ａ線
断面図、第４図は第１図のＢ―Ｂ線断面図、第５
図は第１図のＣ―Ｃ線断面図、第６図は標準例を
示す平面図、第７図はその一部の底面図、第８図
は第６図のＤ―Ｄ線断面図、第９図は第６図のＥ
―Ｅ線断面図、第１０図は第６図のＦ―Ｆ線断面
図、第１１図は変形例を示す平面図、第１２図は
その一部の底面図、第１３図は第１１図のＧ―Ｇ
線断面図、第１４図は第１１図のＨ―Ｈ線断面図
、第１５図は第１１図のＩ―Ｉ線断面図、第１６
図はＯＰアンプの回路図、第１７図は実装パター
ン例を示す平面図、第１８図はその底面図、第１
９図は従来例を示す平面図、第２０図はその一部
の底面図、第２１図は第１９図のＪ―Ｊ線断面図
、第２２図は第１９図のＫ―Ｋ線断面図、第２３
図は第１９図のＬ―Ｌ線断面図である。１……基板、２……配線パターン、３……ラン
ド、４……スルーホール、５……ガード電極、７
……絶縁体被膜。 Figures 1 to 18 show one embodiment of this invention. Figure 1 is a plan view showing a basic example, Figure 2 is a bottom view of a part of it, and Figure 3 is A of Figure 1. -A sectional view, Fig. 4 is a BB sectional view of Fig. 1, Fig. 5
The figure is a sectional view taken along the line CC in Fig. 1, Fig. 6 is a plan view showing a standard example, Fig. 7 is a bottom view of a part thereof, and Fig. 8 is a sectional view taken along the line D-D in Fig. 6. Figure 9 is E of Figure 6.
-E line sectional view, Figure 10 is a FF line sectional view of Figure 6, Figure 11 is a plan view showing a modification, Figure 12 is a partial bottom view, Figure 13 is Figure 11. G-G
14 is a sectional view taken along line H--H in FIG. 11, FIG. 15 is a sectional view taken along line I--I in FIG. 11, and FIG.
The figure is a circuit diagram of an OP amplifier, Figure 17 is a plan view showing an example of a mounting pattern, Figure 18 is a bottom view, and Figure 1
Fig. 9 is a plan view showing a conventional example, Fig. 20 is a bottom view of a part thereof, Fig. 21 is a cross-sectional view taken along line J-J in Fig. 19, and Fig. 22 is a cross-sectional view taken along line K-K in Fig. 19. , 23rd
The figure is a sectional view taken along line LL in FIG. 19. 1... Board, 2... Wiring pattern, 3... Land, 4... Through hole, 5... Guard electrode, 7
...Insulator coating.

Claims

[Scope of utility model registration request]

In a printed wiring board equipped with a guard electrode shaped to surround a land having a through hole for passing a lead wire of an electrical component or a wiring pattern connecting these lands and a land, the surface of the land is completely covered. 1. A printed wiring board, characterized in that an insulating film is formed on a surface of the substrate in a shape that exposes the guard electrode surface and partially or completely exposes the surface of the guard electrode.